16715989512 has 96 divisors (see below), whose sum is σ = 46464425280. Its totient is φ = 5427192960.

The previous prime is 16715989447. The next prime is 16715989513. The reversal of 16715989512 is 21598951761.

It is a happy number.

16715989512 is a `hidden beast` number, since 1 + 6 + 71 + 59 + 8 + 9 + 512 = 666.

It is not an unprimeable number, because it can be changed into a prime (16715989513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404598 + ... + 443994.

It is an arithmetic number, because the mean of its divisors is an integer number (484004430).

Almost surely, 2^16715989512 is an apocalyptic number.

16715989512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16715989512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23232212640).

16715989512 is an abundant number, since it is smaller than the sum of its proper divisors (29748435768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16715989512 is a wasteful number, since it uses less digits than its factorization.

16715989512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39563 (or 39556 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 54.

The spelling of 16715989512 in words is "sixteen billion, seven hundred fifteen million, nine hundred eighty-nine thousand, five hundred twelve".